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Question 1

independent groups design advantage

Answer 1

Very quick and easy to administer ; less time than repeated measures or independent groups.

Reduces the amount of time spent in testing compared to repeated measures ,in which participants are required to complete all conditions.

Question 2

independent groups design disadvantage

Answer 2

Participant differences may have an effect especially in a small sample size.

Question 3

Repeated measures design advantage

Answer 3

Eliminates the impact of participant differences

Question 4

Repeated measures design disadvantage

Answer 4

susceptibility to order effects if counterbalancing is not used.

Question 5

Matched participants design advantage

Answer 5

Helps achieve an even spread of participant characteristics between 2 groups and hence minimizes extraneous variable due to participant differences.

Reduces the amount of time spent in testing compared to repeated measures ,in which participants are required to complete all conditions.

Question 6

Matched participants design disadvantage

Answer 6

More time consuming and costly than the other designs

Consequences of participants dropping out is magnified.

Question 7

one-year baby

Answer 7

13 hours

30-25%

Question 8

5 year old child

Answer 8

10-12 hours

20-25%

Question 9

Adolescents

Answer 9

8-9 hours (some texts may say 9-10 hrs)

20%

Question 10

Young adult

Answer 10

6 hours

20 %

Question 11

the elderly (___50____+ yrs)

Answer 11

5-6 hours

20%